Optional 'test' or benchmark cipher

Chris Rapier rapier at psc.edu
Thu Jan 17 07:09:06 EST 2008

Ben Lindstrom wrote:

> Hmm.. I believe Markus established a few years ago that the HMAC is more 
> costly in terms of preformance than most of the ciphers.

I'm not sure I'd agree with that. On our test systems hmac-md5 has a 
throughput of 404MB/s on 8KiB data blocks while aes128-cbc has a 
throughput of 120MB/s. If HMAC was as or more expensive than the cipher 
I'd expect to see less lopsided figures.

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